Hypertext Webster Gateway: "propeller"
From Webster's Revised Unabridged Dictionary (1913) (web1913)
Tractor screw \Tractor screw\ or propeller \propeller\
(Aviation)
A propeller screw placed in front of the supporting planes of
an a["e]roplane instead of behind them, so that it exerts a
pull instead of a push. Hence,
{Tractor monoplane},
{Tractor biplane}, etc.
From Webster's Revised Unabridged Dictionary (1913) (web1913)
Propeller \Pro*pel"ler\, n.
1. One who, or that which, propels.
2. A contrivance for propelling a steam vessel, usually
consisting of a screw placed in the stern under water, and
made to revolve by an engine; a propeller wheel.
From WordNet (r) 1.7 (wn)
propeller
n : a mechanical device that rotates to push against air or
water [syn: {propellor}]
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